Trump Repeats Unsubstantiated Claim About Voter Fraud During Election

Donald Trump has repeated the unsubstantiated claim that millions of people voted illegally in the 2016 election, a claim that he used after the election to justify his loss of the popular vote, Democratic and Republican sources told ABC News.

An ABC News fact-check found the claim about serious voter fraud to be false.

Trump transition spokesman Jason Miller cited two studies as evidence for the then-president-elect's claim, but the authors of both of those studies disputed his characterizations.

A spokeswoman for the National Association of Secretaries of State, Kay Stimson, said in November the organization has "no information that can help to explain what sources or information are behind the basis of the tweets" by Trump.